Advanced sleep phase disorder is a rare condition that causes your natural circadian rhythm, or sleep-wake cycle, to occur earlier than typical. As humans, our sleep-wake cycle— also known as our ...

Non-24-hour sleep-wake disorder (N24SWD) occurs when your sleep-wake cycle gradually shifts out of sync with the 24-hour day. It affects about half of blind people, but it can also affect those with ...

Schematic representation of sleep-microbiome interactions through the microbiota-gut-brain axis. Signals originating from the gut microbiome influence the sleep-wake cycle by modulating the flip-flop ...